![]() Top it up with DOT4 if it's low, or better yet, suck it out and refill a few times until the system has clean fluid. Pull the air intake box and check fluid level in the HPU reservoir. Check for fluid leaks from the pump or gearshift assy under the car. You can use it to help troubleshoot, or launch re-learn procedures. If you can spin a wrench, you're more likely to fix it successfully yourself.īuy a copy of "techstream" off e-bay. They will likely offer to install a new HPU pump Assy ($3000) or a new GSA shifter Assy ($3000) or a new TCU ($1500?) or all three. Very very few repair shops have any expertise with the SMT system. That solves nothing to do with SMT problems.Ĭommon knowledge here is that many factory troubleshooting procedures point to ECU failure, but it's 99% never anything wrong with the ECU. Hot wiring the brake pedal switch should just trick the car into letting you hit the ignition without pressing the brake pedal. Judging by all the problems i've faced above, can anyone here please adviseme what to do next? orwhat might be the exisiting problems i'm facing. However, i've gotten my ECU checked and it was not damaged. We did a diagnostic test as well and the error code is P1686 - ECU Error. I brought it to my car workshop yesterday and they did a bypass on a sensor as i wasnt able to start my engine yesterday.Īfter they did a bypass, i am now able to start my car without depressing the brakes, he did mentioned this is temporaily and he will rectify the problems soon.Īfter reading the posts from all the experts here, we are assuming that the smt light comes on is because of the gear shift sensor? Recently, the smt light comes on quite often, however, i'm still able to drive normally (switching gears etc) when the smt lights are on. ![]() I've recently bought a MR2 Spyder and have experienced symptoms such as difficulty starting the car and smt transmission problem (both smt light and cel comes on and car just died).
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